"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MWY4-FRY : accessed 27 August 2015), Jacob C Tammel, Bristol, Fillmore, Minnesota, United States; citing sheet 5B, family 93, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,830.